Carl sellenscheidt



No. 6l2,9l6. Patented Oct. 25, I898. C. SELLENSCHEIDT.

F I LT E R (Application filed Dec. 30, 1897.

(No Model.)

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UNITED STATES I CARL SELLENSCHEIDT,

PATENT OFFICE.

OF BERLIN, GERMANY.

FILTER.

SPECIFICATION forming part of Letters Patent No. 612,916, dated October 25, 1898.

Application filed December 30, 1897. Serial N0. 664,775. (No model.)

To all whom it may concern:

Be it known that I, CARL SELLENSCHEIDT, a subject of the Emperor of Germany, and a resident of Berlin, Empire of Germany, have invented certain new and useful, Improvements in Filters, of which the following is a full, clear, and exact description.

The present invention relates to filters; and it consists of the details of construction hereinafter described, and particularly pointed out in the claims, and in order to render the present specification more easily intelligible reference is had to the accompanying drawings, in which similar letters of reference denote similar parts throughout the several views.

Figure 1 is a vertical section on line 0000 of Fig. 2, which is a plan of the filter. Fig. 3 is a vertical transverse section on line 'y y of Fig. 2, and Fig. 4 a similar section on line 2 z of Fig. 2.

The filter illustrated is divided into two chambers, which may be employed separately or together, said chambers being marked A and B, respectively, but any number of chambers may be employed. Since all the chambers are constructed in a similar manner it will sufiice for the purposes of the present specification to describe one only. The water passes along the inlet-pipe f, having cocks f and f, by means of which the Water may be fed to one or both chambers, according as the cooks are opened or, closed, as will be evi: dent from the drawings. The water passes into the entrance-chamber g, which extends throughout the entire length of the chamber, along the front part of the bottom of the same. From this chamber it passes through the lower openings hinto a distributing-chamber 1', which extends upwardly between the two filtering-chambers is k, in which the filtering material-gravel, sand, or the likeis arranged. The walls of the chamber 4 are perforated with slanting holes, Fig. l, for a purpose hereinafter set forth, but primarily to allow the water to pass into the filteringchambers. The water now rises in these latter chambers, being properly filtered, and passes out of the same through their outer perforated walls into the collecting-chambers Z l, whence it flows through openings m into the delivery-chamber n. This chamber is provided with an outlet-pipe 0, having cock 0, by which means the water may be drawn off at will. The delivery-chambers n of the two chambers A and B may be connected by the outlet-pipe 0, having two cockso and 0" and a suitable spout, so that by correspondingly manipulating the cooks water may be drawn 0% from one or the other or from both the chambers A and B, as will be evident.

In order to cleanse the filtering-beds in the chambers is, an outlet 19, Figs. 3 and 4, is provided at the bottom of the filter, and when the filter is full of water and the waterfeed closed and also the outlet-cocks shut off the water in the filter will run back down through the slanting holes of the distributingchamber walls and rinse out the filter-beds, passing through It into the entrance-chamber g and out at p.

The filter-chambers 7c is are provided at the back with tightly-fitting'doors k it, through which the said filtering material may be removed and new material substituted. An overflow-pipe g is provided at the back of the upper part of the chambers M. These latter chambers should advantageously be covered, so as to afford the possibility of raising pressure in the filter-chambers when required. The other chambers Z and 97. may be open, if desired.

I claim as my invention- 1. In a filter the combination of an entrancechamber g extending along the front lower part of the filter, a series of filter-chambers k k behind said entrance-chambers, distributingchambers ibetween said filter-chambers, having perforated walls, a delivery-chamber it above said entrance chamber, collectingohambers Z l at the outside of the filteringchambers, and perforated walls to separate said collecting and filtering chambers, inlets h from the entrance-chamber to the chambers z, and outlets m from the chambers Z Z to the delivery-chamber 'n, and water-feed pipe to the entrance-chamber g and outlet-pipe to the chamber n substantially as described.

2. In a filter the combination of an entrancechamber 9 and a delivery-chamber thereabove, filter-chambers it It behind said entrance and delivery chambers, distributingchamber .t' having perforated walls to communicate with said filter-chambers, said perforations being slanted downwardly'toward the chamber 7 tightly-closing doors 70 to said filter-chambers, collecting-chambers Z Z at the outside of said filter-chambers, having perforated Walls to communicate with said filterchambers, a delivery-chamber nand communication between same and the chambers Z Z and between the chamber 9 and chamber '5, water-feed pipe to chamber 9 and outlet-pipe 10 to chamber n and a lower outlet-pipe p in the manner and for the purpose substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL SELLENSOHEIDT.

Witnesses:

RICHARD THELER, CHARLES H. DAY. 

